ITEM NAME:BT15 Bluetooth Motor Helmet Headset Motorcycle Helmet Handsfree Earphones Product Description Description: BT15 Bluetooth Motor Helmet Headset Waterproof Wireless Handsfree Earphones for Motorcycle Helmet Intercom Feature: Built-in mic, you can answer calls while listening to songs, and can be used in the hands-free system of mobile phones to make or receive calls easily, and the sound quality of calls is clear. Built-in large-capacity lithium battery, multiple circuit protection, and repeated charging through the USB port, long standby and working time. Support volume addition and subtraction, playback pause, up and down music and other functions, support to display the battery level of the Bluetooth headset for iPhone. Specification: Product model: BT15 Answering method: automatic/manual Bluetooth version: V4.1+EDR Frequency range: 2.4026GHz-2.480GHz Transmission distance: 10m (The transmission distance may vary due to environmental factors and mobile Bluetooth devices) Lithium battery: 3.7V/800mAh Charging time: 2.5 hours Standby time: about 60 hours Continuous working time: about 16 hours Driver unit: 50mm 32 ohm 0.5W Response frequency: 180Hz-2000kHz Sound to noise ratio: >80dB Distortion:
